Error: listen EADDRINUSE: address already in use 0.0.0.0:8080

u have another instance of MagicMirror already running

Pi@raspberrypi:~/MagicMirror $ npm start

magicmirror@2.22.0 start
DISPLAY=“${DISPLAY:=:0}” ./node_modules/.bin/electron js/electron.js

[30.03.2023 14:57.53.042] [LOG] Starting MagicMirror: v2.22.0
[30.03.2023 14:57.53.055] [LOG] Loading config …
[30.03.2023 14:57.53.073] [LOG] Loading module helpers …
[30.03.2023 14:57.53.077] [LOG] No helper found for module: alert.
[30.03.2023 14:57.53.124] [LOG] Initializing new module helper …
[30.03.2023 14:57.53.126] [LOG] Module helper loaded: updatenotification
[30.03.2023 14:57.53.128] [LOG] No helper found for module: clock.
[30.03.2023 14:57.53.792] [LOG] Initializing new module helper …
[30.03.2023 14:57.53.794] [LOG] Module helper loaded: calendar
[30.03.2023 14:57.53.984] [LOG] Initializing new module helper …
[30.03.2023 14:57.53.987] [LOG] Module helper loaded: MMM-OpenWeatherForecast
[30.03.2023 14:57.53.989] [LOG] No helper found for module: MMM-TextClock.
[30.03.2023 14:57.59.058] [LOG] Initializing new module helper …
[30.03.2023 14:57.59.060] [LOG] Module helper loaded: newsfeed
[30.03.2023 14:57.59.063] [LOG] No helper found for module: MMM-Globe.
[30.03.2023 14:57.59.078] [LOG] Initializing new module helper …
[30.03.2023 14:57.59.081] [LOG] Module helper loaded: MMM-GoogleMapsTraffic
[30.03.2023 14:57.59.083] [LOG] All module helpers loaded.
[30.03.2023 14:57.59.481] [LOG] Starting server on port 8080 …
[30.03.2023 14:57.59.496] [WARN] You’re using a full whitelist configuration to allow for all IPs
[30.03.2023 14:57.59.533] [ERROR] Whoops! There was an uncaught exception…
[30.03.2023 14:57.59.553] [ERROR] Error: listen EADDRINUSE: address already in use 0.0.0.0:8080
at Server.setupListenHandle [as _listen2] (node:net:1432:16)
at listenInCluster (node:net:1480:12)
at doListen (node:net:1629:7)
at process.processTicksAndRejections (node:internal/process/task_queues:84:21) {
code: ‘EADDRINUSE’,
errno: -98,
syscall: ‘listen’,
address: ‘0.0.0.0’,
port: 8080
}
[30.03.2023 14:57.59.554] [ERROR] MagicMirror² will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
[30.03.2023 14:57.59.557] [ERROR] If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
[30.03.2023 14:58.00.341] [LOG] Launching application.
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
…/…/buildtools/third_party/libc++/trunk/include/vector:1425: assertion __n < size() failed: vector[] index out of bounds[2218:0330/145802.358160:ERROR:gpu_process_host.cc(991)] GPU process exited unexpectedly: exit_code=6
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
…/…/buildtools/third_party/libc++/trunk/include/vector:1425: assertion __n < size() failed: vector[] index out of bounds[2218:0330/145803.485870:ERROR:gpu_process_host.cc(991)] GPU process exited unexpectedly: exit_code=6
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
MESA-LOADER: failed to retrieve device information
…/…/buildtools/third_party/libc++/trunk/include/vector:1425: assertion __n < size() failed: vector[] index out of bounds[2218:0330/145804.578316:ERROR:gpu_process_host.cc(991)] GPU process exited unexpectedly: exit_code=6
[30.03.2023 14:58.22.117] [LOG] Shutting down server…
[30.03.2023 14:58.22.129] [LOG] Stopping module helper: updatenotification
[30.03.2023 14:58.22.132] [LOG] Stopping module helper: calendar
[30.03.2023 14:58.22.133] [LOG] Stopping module helper: MMM-OpenWeatherForecast
[30.03.2023 14:58.22.135] [LOG] Stopping module helper: newsfeed
[30.03.2023 14:58.22.136] [LOG] Stopping module helper: MMM-GoogleMapsTraffic

electron depends on x-windows

echo $DISPLAY
in your remote terminal window

I would make it accessible from the remote system

address:'0.0.0.0',
ipWhitelist:[],

in config.js

then u can start it over ssh
and access fro the system u are using for remote